Support WBURScientists See Upside And Downside Of Sequencing Their Own GenesPlay07:50Download AudioRob SteinSeptember 19, 2012 ShareDr. James Watson looks at a reproduction of the structure of DNA, which he helped discover, in this 1962 photograph. Decades later, Watson was one of the first people to have his entire genome sequenced. (Mondadori via Getty Images)